MELVYL ABI DATABASE TELNET STATISTICS
Time period: 06/01/00 through 06/30/00
1.0 SUMMARY STATISTICS
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1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 33 341 374
Davis 98 0 98
Irvine 108 0 108
Los Angeles 25 170 195
Riverside 47 2 49
San Diego 18 31 49
San Francisco 53 0 53
Santa Barbara 11 36 47
Santa Cruz 12 8 20
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 6 6
Los Alamos 0 0 0
Other - UC 7 9 16
Other-Network UC n/a 252 252
_______ ______ _____
412 855 1,267
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 30 90 873
2-4 a.m. 19 75 904
4-6 a.m. 7 29 350
6-8 a.m. 36 97 877
8-10 a.m. 138 434 4,981
10-12 a.m. 228 685 7,726
12-2 p.m. 230 663 12,338
2-4 p.m. 265 824 11,812
4-6 p.m. 156 420 6,934
6-8 p.m. 61 218 5,911
8-10 p.m. 58 170 5,167
10-12 p.m. 39 125 2,707
__________ __________ __________ _________________
Total: 1,267 3,830 60,580
1.2 FIND commands
__________________
Zero results may indicate no access to the database
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 171 934 1,105
Davis 278 1 279
Irvine 395 0 395
Los Angeles 63 538 601
Riverside 143 7 150
San Diego 85 102 187
San Francisco 156 0 156
Santa Barbara 40 101 141
Santa Cruz 71 22 93
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 13 13
Los Alamos 0 0 0
Other - UC 4 21 25
Other-Network UC n/a 685 685
_______ ______ _____
1,406 2,424 3,830
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 2,393 19,401 21,794
Davis 3,279 0 3,279
Irvine 3,149 0 3,149
Los Angeles 716 14,096 14,812
Riverside 1,956 55 2,011
San Diego 277 796 1,073
San Francisco 1,554 0 1,554
Santa Barbara 654 988 1,642
Santa Cruz 1,142 422 1,564
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 280 280
Los Alamos 0 0 0
Other - UC 67 403 470
Other-Network UC n/a 8,952 8,952
_______ ______ _____
15,187 45,393 60,580
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.9
Standard deviation in seconds 2.5
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.1
Standard deviation in seconds 0.3
2.0 ABI Database Detailed Statistics
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Median session length (minutes:seconds) 8:59
Average session length (minutes:seconds) 15:01
Longest session recorded (minutes:seconds) 465:09
Average number of searches completed per session 3.0
Retrievals per search - median 6.0
Retrievals per search - average 930.5
Retrievals per search - standard deviation 5712.2
Percent of searches completed with 0 results 28.7%
Percent of searches entered that are long 2.2%
Percent of long searches completed
(includes partial results) 81.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 3,409 24.9%
DISPLAY (excluding automatic displays) 6,126 44.7%
BROWSE 8 0.1%
SELECT 3 0.0%
HELP 209 1.5%
EXPLAIN 212 1.5%
SET/RESET 545 4.0%
SHOW 73 0.5%
ADD ON (AND, OR, AND NOT) 420 3.1%
LOGON or LOGOFF 1,561 11.4%
COMMENT 0 0.0%
SAVE 715 5.2%
USE 5 0.0%
OTHER 433 3.2%
2.1 Article Text
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DISPLAY TEXT commands 584
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 72
displays or when any of these paging options is set.
TEXT included with MAIL commands 0
SET DISPLAY TEXT commands 0
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
PERSONAL AUTHOR 933 24.2% 266 28.5% 10 69.5 257.5
TITLE WORD 697 18.1% 292 41.9% 4 95.2 337.2
EXACT TITLE 69 1.8% 32 46.4% 9 83.4 129.6
JOURNAL 242 6.3% 90 37.2% 119 2800.5 7080.4
EXACT JOURNAL 148 3.8% 61 41.2% 120 2613.5 7357.0
SUBJECT 284 7.4% 158 55.6% 261 4323.0 10889.6
EXACT SUBJECT 29 0.8% 8 27.6% 983 5249.5 12778.5
KEYWORD 1,078 27.9% 176 16.3% 61 2006.1 9622.8
PUB TYPE 15 0.4% 3 20.0% 92 3222.4 10263.3
DATE 159 4.1% 34 21.4% 21 397.3 1340.5
ADDED 8 0.2% 2 25.0% 5,306 6322.5 4675.6
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
GEOGRAPHIC NAME 2 0.1% 0 0.0% 306 305.5 316.1
SUBJ CATEGORY 1 0.0% 0 0.0% 69 69.0 0.0
COMPANY NAME 36 0.9% 15 41.7% 26 262.5 918.9
EX COMPANY NAME 0 0.0% 0 0.0% 0 0.0 0.0
DUNS 0 0.0% 0 0.0% 0 0.0 0.0
TICKER SYMBOL 0 0.0% 0 0.0% 0 0.0 0.0
ID NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 1 0.0% 1 100% 0 0.0 0.0
PERIODICAL 98 2.5% 19 19.4% 5 267.0 1846.1
EXACT PE 32 0.8% 4 12.5% 5 29.6 75.3
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 27 0.7% 0 0.0% 511 3118.7 4486.1
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 428 12.6% 146 34.1% 10 228.7 942.1
Single 2,967 87.4% 859 28.9% 30 1572.3 7527.9
BROWSEs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. BROWSEs No. Index Median Avg. Dev.
______ _______ ______ _______ ______ _______ _______
By index:
SUBJECT 8 100% 5 62.5% 2 15.3 24.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.3%
SHORT 88.2%
LONG 0.8%
TAGS 0.1%
FIELDS 2.0%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 2.7%
COMMENTS 0.0%
Other 2.8%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 9.2%
Ten most frequent errors:
1. First word of command is invalid 34.8%
2. NS command - no next screen 30.2%
3. FIND command with invalid index name 10.0%
4. DISPLAY command contains invalid word 4.2%
5. PS command - no previous screen 4.0%
6. Valid command at an inappropriate time 1.5%
7. DISPLAY command-record numbers too large 1.3%
8. Search term missing from search command 1.2%
9. Add-on search, no index name after verb 0.9%
10. 1243 0.9%
11. All others 11.1%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 20.3%
2. FIND (ABI DB) 11.3%
3. LOCATE (ARTICLE DBS) 10.8%
4. INDEXES (ABI DB) 10.4%
5. COMMANDS (ABI/PSY DBS) 7.1%
6. MAIL 4.2%
7. DISPLAY (ABI DB) 3.3%
8. Unrecognized term 3.3%
9. SUBJECT CATEGORIES (ABI DB) 2.4%
10. ABI/INFORM DB 1.9%
11. All others 25.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 24.2%
2. First word of command is invalid 12.6%
3. FIND command with invalid index name 11.4%
4. FIND command with zero results 7.1%
5. DISPLAY command-first of >1 screen 5.9%
6. DISPLAY command-complete in one screen 5.7%
7. FIND command retrieves >1 book 4.0%
8. DISPLAY command - middle of >1 screen 4.0%
9. NS command - no next screen 2.6%
10. PS command - no previous screen 2.6%
11. All others 19.7%
Ten most frequent SHOW requests:
1. HISTORY 52.5%
2. SEARCH 18.0%
3. MAIL STATUS 6.6%
4. PUBLICATION TYPES (ABI DB) 1.6%
5. GEOGRAPHIC NAMES 1.6%
6. T500 1.6%
7. GLOSSARY 1.6%
8. SYSTEM NEWS 1.6%
9. SYSTEM1 NEWS 1.6%
10. MAIL SETTINGS 1.6%
11. All others 11.5%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)